311. Bile acids are formed from__________?
A. Cholesterol
B. Aminoacids
C. Bilirubin
D. Lipoproteins

312. Normal blood bilirubin level is______________?
A. 0.5 – 1 mg%
B. 1 – 3 mg%
C. 3 – 4 mg%
D. 4 – 5.5 mg%

313. Which of the following is precursor of adrenaline and thyroxine synthesis ?
A. Phenyl alanine
B. Tyrosine
C. Tryptophan
D. None of the above

314. The immediate precursor of norepinephrine is______________?
A. Epinephrine
B. Tyrosine
C. Dopamine
D. Phenylalanine

315. The precursor of testosterone is_____________?
A. Aldosterone
B. Methyl testosterone
C. Estrogen
D. Pregnenolone

316. Which of the following is not a second messenger ?
A. c AMP
B. c GMP
C. Phosphatidyl inosital
D. Phosphatidyl glycerol

317. A balanced diet consists of______________?
A. 20% proteins, 25% fats, 50% carbohydrates
B. 20% proteins, 35% fats, 45% carbohydrates
C. 25% proteins, 25% fats, 50% carbohydrates
D. 35% proteins, 15% fats, 50% carbohydrates

318. Which of the organelles contain DNA_________________?
A. Nucleus
B. Nucleolus
C. Golgi apparatus
D. Ribsomes

319. Cell membrane consists of_________________?
A. Lipids and proteins
B. Lipids only
C. Protein only
D. None of the above

320. The main function of mitochondria is______________?
A. Protein synthesis
B. Oxidation
C. Electron transfer
D. Fat synthesis